If this card is face-up on the field, you cannot use it for a Synchro Summon. If this card is in your Graveyard, you can remove from play this card plus 1 non-Tuner "Blackwing" monster in your Graveyard, and Special Summon 1 "Blackwing " Synchro Monster from your Extra Deck whose Level equal the total Levels of the removed monsters. The effect(s) of that Synchro Monster is negated.